476
CDUS43 KLOT 090633
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT TUE SEP 09 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 8 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 73 3:49 PM 98 1933 79 -6 73
MINIMUM 52 5:39 AM 45 1986 62 -10 49
AVERAGE 63 70 -7 61
PRECIPITATION (IN)
YESTERDAY 0.00 1.37 1948 0.09 -0.09 0.00
MONTH TO DATE 0.06 0.84 -0.78 T
SINCE SEP 1 0.06 0.84 -0.78 T
SINCE JAN 1 24.88 24.87 0.01 29.47
DEGREE DAYS
HEATING
YESTERDAY 2 1 1 4
MONTH TO DATE 21 3 18 10
SINCE SEP 1 21 3 18 10
SINCE JUL 1 23 7 16 10
COOLING
YESTERDAY 0 6 -6 0
MONTH TO DATE 11 54 -43 34
SINCE SEP 1 11 54 -43 34
SINCE JAN 1 1152 1010 142 1157
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 3:00 AM
LOWEST 33 2:00 PM
AVERAGE 50
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 95 1955
1959
1983
MINIMUM TEMPERATURE (F) 61 47 1943
1975
SUNRISE AND SUNSET
SEPTEMBER 9 2025.....SUNRISE 6:25 AM CDT SUNSET 7:10 PM CDT
SEPTEMBER 10 2025.....SUNRISE 6:26 AM CDT SUNSET 7:09 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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